MESOSCALE DISCUSSION 1546
   NWS STORM PREDICTION CENTER NORMAN OK
   0527 PM CDT THU JUL 19 2007
   
   AREAS AFFECTED...ERN PA AND NJ SWWD INTO PARTS OF SRN VA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 543...
   
   VALID 192227Z - 200000Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 543
   CONTINUES.
   
   SEVERE THREAT CONTINUES TO SLOWLY DIMINISH ACROSS MOST OF WW.
   
   MAIN CLUSTER OF STRONG/SEVERE STORMS CONTINUES MOVING TOWARD/OFF THE
   MID-ATLANTIC COAST ATTM...WITH A MORE STABLE AIRMASS NOW COVERING
   MOST OF WW.  WHILE OTHER STORMS CONTINUE W OF WW...ACROSS WRN PA AND
   INTO PARTS OF WV AND KY...SEVERE THREAT SHOULD REMAIN LIMITED GIVEN
   PRIOR CONVECTIVE OVERTURNING OF THE AIRMASS.
   
   ONE EXCEPTION MAY BE ACROSS SRN VA...NEAR OUTFLOW BOUNDARY
   DELINEATING SRN FRINGES OF CONVECTIVELY-COOLED AIR.  A FEW
   STRONGER/LOCALLY-SEVERE STORMS ARE ONGOING OVER SWRN PORTIONS OF WW
   NEAR THIS BOUNDARY...WHERE MIXED-LAYER CAPE AROUND 1500 J/KG
   PERSISTS.
   
   ..GOSS.. 07/19/2007
   
   
   ATTN...WFO...OKX...PHI...BGM...AKQ...CTP...LWX...RAH...RNK...RLX...
   
   41347535 40747386 39277453 36377766 36697972 38647968
   39457780